43241421 has 8 divisors (see below), whose sum is σ = 61046784. Its totient is φ = 27131840.

The previous prime is 43241399. The next prime is 43241453. The reversal of 43241421 is 12414234.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43241421 - 2⁵ = 43241389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43241461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423885 + ... + 423986.

It is an arithmetic number, because the mean of its divisors is an integer number (7630848).

Almost surely, 2^43241421 is an apocalyptic number.

It is an amenable number.

43241421 is a deficient number, since it is larger than the sum of its proper divisors (17805363).

43241421 is a wasteful number, since it uses less digits than its factorization.

43241421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847891.

The product of its digits is 768, while the sum is 21.

The square root of 43241421 is about 6575.8209373431. The cubic root of 43241421 is about 350.9942369651.

Adding to 43241421 its reverse (12414234), we get a palindrome (55655655).

The spelling of 43241421 in words is "forty-three million, two hundred forty-one thousand, four hundred twenty-one".